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-rw-r--r--tools/perf/util/newt.c526
1 files changed, 526 insertions, 0 deletions
diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
new file mode 100644
index 00000000000..e99bcc8d193
--- /dev/null
+++ b/tools/perf/util/newt.c
@@ -0,0 +1,526 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#undef _GNU_SOURCE
+
+#include <stdlib.h>
+#include <newt.h>
+#include <sys/ttydefaults.h>
+
+#include "cache.h"
+#include "hist.h"
+#include "session.h"
+#include "sort.h"
+#include "symbol.h"
+
+static void newt_form__set_exit_keys(newtComponent self)
+{
+ newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
+ newtFormAddHotKey(self, 'Q');
+ newtFormAddHotKey(self, 'q');
+ newtFormAddHotKey(self, CTRL('c'));
+}
+
+static newtComponent newt_form__new(void)
+{
+ newtComponent self = newtForm(NULL, NULL, 0);
+ if (self)
+ newt_form__set_exit_keys(self);
+ return self;
+}
+
+static int popup_menu(int argc, const char *argv[])
+{
+ struct newtExitStruct es;
+ int i, rc = -1, max_len = 5;
+ newtComponent listbox, form = newt_form__new();
+
+ if (form == NULL)
+ return -1;
+
+ listbox = newtListbox(0, 0, argc, NEWT_FLAG_RETURNEXIT);
+ if (listbox == NULL)
+ goto out_destroy_form;
+
+ newtFormAddComponents(form, listbox, NULL);
+
+ for (i = 0; i < argc; ++i) {
+ int len = strlen(argv[i]);
+ if (len > max_len)
+ max_len = len;
+ if (newtListboxAddEntry(listbox, argv[i], (void *)(long)i))
+ goto out_destroy_form;
+ }
+
+ newtCenteredWindow(max_len, argc, NULL);
+ newtFormRun(form, &es);
+ rc = newtListboxGetCurrent(listbox) - NULL;
+ if (es.reason == NEWT_EXIT_HOTKEY)
+ rc = -1;
+ newtPopWindow();
+out_destroy_form:
+ newtFormDestroy(form);
+ return rc;
+}
+
+static bool dialog_yesno(const char *msg)
+{
+ /* newtWinChoice should really be accepting const char pointers... */
+ char yes[] = "Yes", no[] = "No";
+ return newtWinChoice(NULL, no, yes, (char *)msg) == 2;
+}
+
+/*
+ * When debugging newt problems it was useful to be able to "unroll"
+ * the calls to newtCheckBoxTreeAdd{Array,Item}, so that we can generate
+ * a source file with the sequence of calls to these methods, to then
+ * tweak the arrays to get the intended results, so I'm keeping this code
+ * here, may be useful again in the future.
+ */
+#undef NEWT_DEBUG
+
+static void newt_checkbox_tree__add(newtComponent tree, const char *str,
+ void *priv, int *indexes)
+{
+#ifdef NEWT_DEBUG
+ /* Print the newtCheckboxTreeAddArray to tinker with its index arrays */
+ int i = 0, len = 40 - strlen(str);
+
+ fprintf(stderr,
+ "\tnewtCheckboxTreeAddItem(tree, %*.*s\"%s\", (void *)%p, 0, ",
+ len, len, " ", str, priv);
+ while (indexes[i] != NEWT_ARG_LAST) {
+ if (indexes[i] != NEWT_ARG_APPEND)
+ fprintf(stderr, " %d,", indexes[i]);
+ else
+ fprintf(stderr, " %s,", "NEWT_ARG_APPEND");
+ ++i;
+ }
+ fprintf(stderr, " %s", " NEWT_ARG_LAST);\n");
+ fflush(stderr);
+#endif
+ newtCheckboxTreeAddArray(tree, str, priv, 0, indexes);
+}
+
+static char *callchain_list__sym_name(struct callchain_list *self,
+ char *bf, size_t bfsize)
+{
+ if (self->ms.sym)
+ return self->ms.sym->name;
+
+ snprintf(bf, bfsize, "%#Lx", self->ip);
+ return bf;
+}
+
+static void __callchain__append_graph_browser(struct callchain_node *self,
+ newtComponent tree, u64 total,
+ int *indexes, int depth)
+{
+ struct rb_node *node;
+ u64 new_total, remaining;
+ int idx = 0;
+
+ if (callchain_param.mode == CHAIN_GRAPH_REL)
+ new_total = self->children_hit;
+ else
+ new_total = total;
+
+ remaining = new_total;
+ node = rb_first(&self->rb_root);
+ while (node) {
+ struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
+ struct rb_node *next = rb_next(node);
+ u64 cumul = cumul_hits(child);
+ struct callchain_list *chain;
+ int first = true, printed = 0;
+ int chain_idx = -1;
+ remaining -= cumul;
+
+ indexes[depth] = NEWT_ARG_APPEND;
+ indexes[depth + 1] = NEWT_ARG_LAST;
+
+ list_for_each_entry(chain, &child->val, list) {
+ char ipstr[BITS_PER_LONG / 4 + 1],
+ *alloc_str = NULL;
+ const char *str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
+
+ if (first) {
+ double percent = cumul * 100.0 / new_total;
+
+ first = false;
+ if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
+ str = "Not enough memory!";
+ else
+ str = alloc_str;
+ } else {
+ indexes[depth] = idx;
+ indexes[depth + 1] = NEWT_ARG_APPEND;
+ indexes[depth + 2] = NEWT_ARG_LAST;
+ ++chain_idx;
+ }
+ newt_checkbox_tree__add(tree, str, &chain->ms, indexes);
+ free(alloc_str);
+ ++printed;
+ }
+
+ indexes[depth] = idx;
+ if (chain_idx != -1)
+ indexes[depth + 1] = chain_idx;
+ if (printed != 0)
+ ++idx;
+ __callchain__append_graph_browser(child, tree, new_total, indexes,
+ depth + (chain_idx != -1 ? 2 : 1));
+ node = next;
+ }
+}
+
+static void callchain__append_graph_browser(struct callchain_node *self,
+ newtComponent tree, u64 total,
+ int *indexes, int parent_idx)
+{
+ struct callchain_list *chain;
+ int i = 0;
+
+ indexes[1] = NEWT_ARG_APPEND;
+ indexes[2] = NEWT_ARG_LAST;
+
+ list_for_each_entry(chain, &self->val, list) {
+ char ipstr[BITS_PER_LONG / 4 + 1], *str;
+
+ if (chain->ip >= PERF_CONTEXT_MAX)
+ continue;
+
+ if (!i++ && sort__first_dimension == SORT_SYM)
+ continue;
+
+ str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
+ newt_checkbox_tree__add(tree, str, &chain->ms, indexes);
+ }
+
+ indexes[1] = parent_idx;
+ indexes[2] = NEWT_ARG_APPEND;
+ indexes[3] = NEWT_ARG_LAST;
+ __callchain__append_graph_browser(self, tree, total, indexes, 2);
+}
+
+static void hist_entry__append_callchain_browser(struct hist_entry *self,
+ newtComponent tree, u64 total, int parent_idx)
+{
+ struct rb_node *rb_node;
+ int indexes[1024] = { [0] = parent_idx, };
+ int idx = 0;
+ struct callchain_node *chain;
+
+ rb_node = rb_first(&self->sorted_chain);
+ while (rb_node) {
+ chain = rb_entry(rb_node, struct callchain_node, rb_node);
+ switch (callchain_param.mode) {
+ case CHAIN_FLAT:
+ break;
+ case CHAIN_GRAPH_ABS: /* falldown */
+ case CHAIN_GRAPH_REL:
+ callchain__append_graph_browser(chain, tree, total, indexes, idx++);
+ break;
+ case CHAIN_NONE:
+ default:
+ break;
+ }
+ rb_node = rb_next(rb_node);
+ }
+}
+
+/*
+ * FIXME: get lib/string.c linked with perf somehow
+ */
+static char *skip_spaces(const char *str)
+{
+ while (isspace(*str))
+ ++str;
+ return (char *)str;
+}
+
+static char *strim(char *s)
+{
+ size_t size;
+ char *end;
+
+ s = skip_spaces(s);
+ size = strlen(s);
+ if (!size)
+ return s;
+
+ end = s + size - 1;
+ while (end >= s && isspace(*end))
+ end--;
+ *(end + 1) = '\0';
+
+ return s;
+}
+
+static size_t hist_entry__append_browser(struct hist_entry *self,
+ newtComponent tree, u64 total)
+{
+ char bf[1024], *s;
+ FILE *fp;
+
+ if (symbol_conf.exclude_other && !self->parent)
+ return 0;
+
+ fp = fmemopen(bf, sizeof(bf), "w");
+ if (fp == NULL)
+ return 0;
+
+ hist_entry__fprintf(self, NULL, false, 0, fp, total);
+ fclose(fp);
+
+ /*
+ * FIXME: We shouldn't need to trim, as the printing routines shouldn't
+ * add spaces it in the first place, the stdio output routines should
+ * call a __snprintf method instead of the current __print (that
+ * actually is a __fprintf) one, but get the raw string and _then_ add
+ * the newline, as this is a detail of stdio printing, not needed in
+ * other UIs, e.g. newt.
+ */
+ s = strim(bf);
+
+ if (symbol_conf.use_callchain) {
+ int indexes[2];
+
+ indexes[0] = NEWT_ARG_APPEND;
+ indexes[1] = NEWT_ARG_LAST;
+ newt_checkbox_tree__add(tree, s, &self->ms, indexes);
+ } else
+ newtListboxAppendEntry(tree, s, &self->ms);
+
+ return strlen(s);
+}
+
+static void map_symbol__annotate_browser(const struct map_symbol *self)
+{
+ FILE *fp;
+ int cols, rows;
+ newtComponent form, tree;
+ struct newtExitStruct es;
+ char *str;
+ size_t line_len, max_line_len = 0;
+ size_t max_usable_width;
+ char *line = NULL;
+
+ if (self->sym == NULL)
+ return;
+
+ if (asprintf(&str, "perf annotate -d \"%s\" %s 2>&1 | expand",
+ self->map->dso->name, self->sym->name) < 0)
+ return;
+
+ fp = popen(str, "r");
+ if (fp == NULL)
+ goto out_free_str;
+
+ newtPushHelpLine("Press ESC to exit");
+ newtGetScreenSize(&cols, &rows);
+ tree = newtListbox(0, 0, rows - 5, NEWT_FLAG_SCROLL);
+
+ while (!feof(fp)) {
+ if (getline(&line, &line_len, fp) < 0 || !line_len)
+ break;
+ while (line_len != 0 && isspace(line[line_len - 1]))
+ line[--line_len] = '\0';
+
+ if (line_len > max_line_len)
+ max_line_len = line_len;
+ newtListboxAppendEntry(tree, line, NULL);
+ }
+ fclose(fp);
+ free(line);
+
+ max_usable_width = cols - 22;
+ if (max_line_len > max_usable_width)
+ max_line_len = max_usable_width;
+
+ newtListboxSetWidth(tree, max_line_len);
+
+ newtCenteredWindow(max_line_len + 2, rows - 5, self->sym->name);
+ form = newt_form__new();
+ newtFormAddComponents(form, tree, NULL);
+
+ newtFormRun(form, &es);
+ newtFormDestroy(form);
+ newtPopWindow();
+ newtPopHelpLine();
+out_free_str:
+ free(str);
+}
+
+static const void *newt__symbol_tree_get_current(newtComponent self)
+{
+ if (symbol_conf.use_callchain)
+ return newtCheckboxTreeGetCurrent(self);
+ return newtListboxGetCurrent(self);
+}
+
+static void perf_session__selection(newtComponent self, void *data)
+{
+ const struct map_symbol **symbol_ptr = data;
+ *symbol_ptr = newt__symbol_tree_get_current(self);
+}
+
+void perf_session__browse_hists(struct rb_root *hists, u64 session_total,
+ const char *helpline)
+{
+ struct sort_entry *se;
+ struct rb_node *nd;
+ char seq[] = ".";
+ unsigned int width;
+ char *col_width = symbol_conf.col_width_list_str;
+ int rows, cols, idx;
+ int max_len = 0;
+ char str[1024];
+ newtComponent form, tree;
+ struct newtExitStruct es;
+ const struct map_symbol *selection;
+
+ snprintf(str, sizeof(str), "Samples: %Ld", session_total);
+ newtDrawRootText(0, 0, str);
+ newtPushHelpLine(helpline);
+
+ newtGetScreenSize(&cols, &rows);
+
+ if (symbol_conf.use_callchain)
+ tree = newtCheckboxTreeMulti(0, 0, rows - 5, seq,
+ NEWT_FLAG_SCROLL);
+ else
+ tree = newtListbox(0, 0, rows - 5, (NEWT_FLAG_SCROLL |
+ NEWT_FLAG_RETURNEXIT));
+
+ newtComponentAddCallback(tree, perf_session__selection, &selection);
+
+ list_for_each_entry(se, &hist_entry__sort_list, list) {
+ if (se->elide)
+ continue;
+ width = strlen(se->header);
+ if (se->width) {
+ if (symbol_conf.col_width_list_str) {
+ if (col_width) {
+ *se->width = atoi(col_width);
+ col_width = strchr(col_width, ',');
+ if (col_width)
+ ++col_width;
+ }
+ }
+ *se->width = max(*se->width, width);
+ }
+ }
+
+ idx = 0;
+ for (nd = rb_first(hists); nd; nd = rb_next(nd)) {
+ struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+ int len = hist_entry__append_browser(h, tree, session_total);
+ if (len > max_len)
+ max_len = len;
+ if (symbol_conf.use_callchain)
+ hist_entry__append_callchain_browser(h, tree, session_total, idx++);
+ }
+
+ if (max_len > cols)
+ max_len = cols - 3;
+
+ if (!symbol_conf.use_callchain)
+ newtListboxSetWidth(tree, max_len);
+
+ newtCenteredWindow(max_len + (symbol_conf.use_callchain ? 5 : 0),
+ rows - 5, "Report");
+ form = newt_form__new();
+ newtFormAddHotKey(form, 'A');
+ newtFormAddHotKey(form, 'a');
+ newtFormAddHotKey(form, NEWT_KEY_RIGHT);
+ newtFormAddComponents(form, tree, NULL);
+ selection = newt__symbol_tree_get_current(tree);
+
+ while (1) {
+ char annotate[512];
+ const char *options[2];
+ int nr_options = 0, choice = 0;
+
+ newtFormRun(form, &es);
+ if (es.reason == NEWT_EXIT_HOTKEY) {
+ if (toupper(es.u.key) == 'A')
+ goto do_annotate;
+ if (es.u.key == NEWT_KEY_ESCAPE ||
+ toupper(es.u.key) == 'Q' ||
+ es.u.key == CTRL('c')) {
+ if (dialog_yesno("Do you really want to exit?"))
+ break;
+ else
+ continue;
+ }
+ }
+
+ if (selection->sym != NULL) {
+ snprintf(annotate, sizeof(annotate),
+ "Annotate %s", selection->sym->name);
+ options[nr_options++] = annotate;
+ }
+
+ options[nr_options++] = "Exit";
+ choice = popup_menu(nr_options, options);
+ if (choice == nr_options - 1)
+ break;
+do_annotate:
+ if (selection->sym != NULL && choice >= 0) {
+ if (selection->map->dso->origin == DSO__ORIG_KERNEL) {
+ newtPopHelpLine();
+ newtPushHelpLine("No vmlinux file found, can't "
+ "annotate with just a "
+ "kallsyms file");
+ continue;
+ }
+ map_symbol__annotate_browser(selection);
+ }
+ }
+
+ newtFormDestroy(form);
+ newtPopWindow();
+}
+
+static char browser__last_msg[1024];
+
+int browser__show_help(const char *format, va_list ap)
+{
+ int ret;
+ static int backlog;
+
+ ret = vsnprintf(browser__last_msg + backlog,
+ sizeof(browser__last_msg) - backlog, format, ap);
+ backlog += ret;
+
+ if (browser__last_msg[backlog - 1] == '\n') {
+ newtPopHelpLine();
+ newtPushHelpLine(browser__last_msg);
+ newtRefresh();
+ backlog = 0;
+ }
+
+ return ret;
+}
+
+void setup_browser(void)
+{
+ if (!isatty(1))
+ return;
+
+ use_browser = true;
+ newtInit();
+ newtCls();
+ newtPushHelpLine(" ");
+}
+
+void exit_browser(bool wait_for_ok)
+{
+ if (use_browser) {
+ if (wait_for_ok) {
+ char title[] = "Fatal Error", ok[] = "Ok";
+ newtWinMessage(title, ok, browser__last_msg);
+ }
+ newtFinished();
+ }
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-03 04:32:00 +0000